I suspect part of it is because fans have been asking for it; they've been very vocal and consistent in asking for the Deep Roads (something specific which BioWare has experience in doing).

If we want something different, we should decide on what and then ask for it consistently. Until we decide on what that "something different" is, we're going to keep getting more of the same and I don't believe the fanbase as it in them to decide on one single thing they'd like to explore.

Personally, I want a Minrathous DLC. And as soon as I mention that, someone is going to say, "I want to see Arlathan" followed by everyone suggesting different places we'd like to explore, thus proving my point.

I played Dragonage first, then Witcher 3 and am back on Dragonage now. It's not a bad game at all, if you play as a mage and just straight up ignore certain quests. Anything involving collecting shards especially, most of the requisitions. Just don't bother. Play the main quest and a few of the minor side quests though and ignore the 'my husband lost his ring, could you help me....zzzzzz'.

I hated the combat as a Rogue, but as a mage it's actually pretty damn fun.